the entire wiki with video and photo galleries
find something interesting to watch in seconds
TOP LISTS · VIDEO PICKER · LANGUAGE
RELATED RESEARCH TOPICS

1. Geographic coordinate system – A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation

2. Iran – Iran, also known as Persia, officially the Islamic Republic of Iran, is a sovereign state in Western Asia. Comprising a land area of 1,648,195 km2, it is the second-largest country in the Middle East, with 82.8 million inhabitants, Iran is the worlds 17th-most-populous country. It is the country with both a Caspian Sea and an Indian Ocean coastline. The countrys central location in Eurasia and Western Asia, and its proximity to the Strait of Hormuz, Tehran is the countrys capital and largest city, as well as its leading economic and cultural center. Iran is the site of to one of the worlds oldest civilizations, the area was first unified by the Iranian Medes in 625 BC, who became the dominant cultural and political power in the region. The empire collapsed in 330 BC following the conquests of Alexander the Great, under the Sassanid Dynasty, Iran again became one of the leading powers in the world for the next four centuries. Beginning in 633 AD, Arabs conquered Iran and largely displaced the indigenous faiths of Manichaeism and Zoroastrianism by Islam, Iran became a major contributor to the Islamic Golden Age that followed, producing many influential scientists, scholars, artists, and thinkers. During the 18th century, Iran reached its greatest territorial extent since the Sassanid Empire, through the late 18th and 19th centuries, a series of conflicts with Russia led to significant territorial losses and the erosion of sovereignty. Popular unrest culminated in the Persian Constitutional Revolution of 1906, which established a monarchy and the countrys first legislative body. Following a coup instigated by the U. K. Growing dissent against foreign influence and political repression led to the 1979 Revolution, Irans rich cultural legacy is reflected in part by its 21 UNESCO World Heritage Sites, the third-largest number in Asia and 11th-largest in the world. Iran is a member of the UN, ECO, NAM, OIC. Its political system is based on the 1979 Constitution which combines elements of a democracy with a theocracy governed by Islamic jurists under the concept of a Supreme Leadership. A multicultural country comprising numerous ethnic and linguistic groups, most inhabitants are Shia Muslims, the largest ethnic groups in Iran are the Persians, Azeris, Kurds and Lurs. Historically, Iran has been referred to as Persia by the West, due mainly to the writings of Greek historians who called Iran Persis, meaning land of the Persians. As the most extensive interactions the Ancient Greeks had with any outsider was with the Persians, however, Persis was originally referred to a region settled by Persians in the west shore of Lake Urmia, in the 9th century BC. The settlement was then shifted to the end of the Zagros Mountains. In 1935, Reza Shah requested the international community to refer to the country by its native name, opposition to the name change led to the reversal of the decision, and Professor Ehsan Yarshater, editor of Encyclopædia Iranica, propagated a move to use Persia and Iran interchangeably

3. Provinces of Iran – Iran is subdivided into thirty one provinces, each governed from a local center, usually the largest local city, which is called the capital of that province. The provincial authority is headed by a Governor-General, who is appointed by the Minister of the Interior subject to approval of the cabinet, from 1960 to 1981 the governorates were raised to provincial status one by one

4. Khuzestan Province – Khuzestan Province is one of the 31 provinces of Iran. It is in the southwest of the country, bordering Iraq and its capital is Ahvaz and it covers an area of 63,238 km2. In 2014 it was placed in Region 4, as the Iranian province with the oldest history, it is often referred to as the birthplace of the nation, as this is where the history of the Elamites begins. Historically, one of the most important regions of the Ancient Near East, Khuzestan is what historians refer to as ancient Elam, the Achaemenid Old Persian term for Elam was Hujiyā when they conquered it from the Elamites, which is present in the modern name. Khuzestan, meaning the Land of the Khuz refers to the inhabitants of this province. In Middle Persian the term evolves into Khuz and Kuzi, the pre-Islamic Partho-Sasanian Inscriptions gives the name of the province as Khwuzestan. The seat of the province has for the most of its history been in the reaches of the land, first at Susa. This town is now known as Ahvaz, however, later in the Sasanian time and throughout the Islamic era, the provincial seat returned and stayed at Shushtar, until the late Qajar period. With the increase in the international sea commerce arriving on the shores of Khuzistan, the River Karun is navigable all the way to Ahvaz. The town was refurbished by the order of the Qajar king, Naser al-Din Shah and renamed after him. Shushtar quickly declined, while Ahvaz/Nâseri prospered to the present day, currently, Khuzestan has 18 representatives in Irans parliament, the Majlis, and 6 representatives in the Assembly of Experts. Khuzestan is known for its diversity, the population of Khuzestan consists of Lurs, Iranian Arabs, Qashqai people, Afshar tribe, indigenous Persians. Khuzestans population is predominantly Shia Muslim, but there are small Christian, Jewish, Sunni, half of Khuzestans population is Lurs. The name Khuzestan means The Land of the Khuzi, and refers to the inhabitants of this province. The name of the city of Ahvaz also has the same origin as the name Khuzestan, being an Arabic broken plural from the compound name, Suq al-Ahvaz --the medieval name of the town, that replaced the Sasanian Persian name of the pre-Islamic times. The entire province was known as the Khudhi or the Khooji until the reign of the Safavid king Tahmasp I. The southern half of the province—south, southwest of the Ahwaz Ridge, had come by the 17th century to be known—at least to the imperial Safavid chancery as Arabistan. The contemporaneous history, the Alamara-i Abbasi by Iskandar Beg Munshi, written during the reign of king Abbas I, the northern half continued to be called Khuzestan

5. Counties of Iran – The counties of Iran, also called shahrestan, are administrative divisions of larger provinces. The word shahrestan comes from the Persian words shahr and stān, county, therefore, is a near equivalent of shahrestan. Iranian counties are divided into one or more bakhsh, or districts, a typical county includes both cities and rural agglomerations, which are groupings of adjacent villages. One city within the county serves as the capital of that county, in 2005, Iran had 324 shahrestans. To better understand these subdivisions, the table is useful. Assume that province P is divided into two counties, A and B, county A has 3 districts, Central, X, and Y. The Central district is the district that contains City M, the capital of the county, each district contains one or more cities and/or one or more RAs. The minimal county consists of one city as the only district, named Central. The county B in the table is of such type

6. Dezful County – Dezful County is a county in Khuzestan Province in Iran. The capital of the county is Dezful, at the 2006 census, the countys population was 384,851, in 87,205 families. The county is subdivided into three districts, the Central District, Sardasht District, and Choghamish District, the county has five cities, Dezful, Dezab, Mianrud, Safiabad, and Saland

7. Rural Districts of Iran – The first level of country subdivisions of Iran are the provinces. Each province is subdivided into counties called shahrestan, and each shahrestan is subdivided into districts called bakhsh. There are usually a few cities and rural districts in each county, rural districts are a collection of a number of villages. One of the cities of the county is appointed as the capital of the county, assume that province P is divided into two counties, A and B. County A has 3 districts, Central, X, and Y, the Central district is the district that contains City M, the capital of the county. Each district might contain one or more cities or one or more RDs, the minimal county consists of only one city as the only district, named Central, which is most common. The county B in the table is of such type

8. Iran Standard Time – Iran Standard Time or Iran Time is the time zone used in Iran. Iran uses a UTC offset UTC+03,30, IRST is defined by the 52.5 degrees east meridian, the same meridian which defines the Iranian calendar and is the official meridian of Iran. Between 2005 and 2008, by decree of President Mahmoud Ahmadinejad and it was reintroduced from 21 March 2008. Iran is unusual in that the dates of DST transitions arent based on a such as the third Monday in September. So in most countries, DST transitions occur on the same every year

9. Daylight saving time – Daylight saving time is the practice of advancing clocks during summer months by one hour so that evening daylight lasts an hour longer, while sacrificing normal sunrise times. Typically, regions that use Daylight Savings Time adjust clocks forward one hour close to the start of spring, American inventor and politician Benjamin Franklin proposed a form of daylight time in 1784. New Zealander George Hudson proposed the idea of saving in 1895. The German Empire and Austria-Hungary organized the first nationwide implementation, starting on April 30,1916, many countries have used it at various times since then, particularly since the energy crisis of the 1970s. The practice has both advocates and critics, DST clock shifts sometimes complicate timekeeping and can disrupt travel, billing, record keeping, medical devices, heavy equipment, and sleep patterns. Computer software often adjusts clocks automatically, but policy changes by various jurisdictions of DST dates, industrialized societies generally follow a clock-based schedule for daily activities that do not change throughout the course of the year. The time of day that individuals begin and end work or school, North and south of the tropics daylight lasts longer in summer and shorter in winter, with the effect becoming greater as one moves away from the tropics. However, they will have one hour of daylight at the start of each day. Supporters have also argued that DST decreases energy consumption by reducing the need for lighting and heating, DST is also of little use for locations near the equator, because these regions see only a small variation in daylight in the course of the year. After ancient times, equal-length civil hours eventually supplanted unequal, so civil time no longer varies by season, unequal hours are still used in a few traditional settings, such as some monasteries of Mount Athos and all Jewish ceremonies. This 1784 satire proposed taxing window shutters, rationing candles, and waking the public by ringing church bells, despite common misconception, Franklin did not actually propose DST, 18th-century Europe did not even keep precise schedules. However, this changed as rail transport and communication networks came to require a standardization of time unknown in Franklins day. Modern DST was first proposed by the New Zealand entomologist George Hudson, whose shift work job gave him time to collect insects. An avid golfer, he also disliked cutting short his round at dusk and his solution was to advance the clock during the summer months, a proposal he published two years later. The proposal was taken up by the Liberal Member of Parliament Robert Pearce, a select committee was set up to examine the issue, but Pearces bill did not become law, and several other bills failed in the following years. Willett lobbied for the proposal in the UK until his death in 1915, william Sword Frost, mayor of Orillia, Ontario, introduced daylight saving time in the municipality during his tenure from 1911 to 1912. Starting on April 30,1916, the German Empire and its World War I ally Austria-Hungary were the first to use DST as a way to conserve coal during wartime, Britain, most of its allies, and many European neutrals soon followed suit. Russia and a few other countries waited until the year

10. Iran Daylight Time – Iran Standard Time or Iran Time is the time zone used in Iran. Iran uses a UTC offset UTC+03,30, IRST is defined by the 52.5 degrees east meridian, the same meridian which defines the Iranian calendar and is the official meridian of Iran. Between 2005 and 2008, by decree of President Mahmoud Ahmadinejad and it was reintroduced from 21 March 2008. Iran is unusual in that the dates of DST transitions arent based on a such as the third Monday in September. So in most countries, DST transitions occur on the same every year

11. Persian language – Persian, also known by its endonym Farsi, is one of the Western Iranian languages within the Indo-Iranian branch of the Indo-European language family. It is primarily spoken in Iran, Afghanistan, and Tajikistan and it is mostly written in the Persian alphabet, a modified variant of the Arabic script. Its grammar is similar to that of many contemporary European languages, Persian gets its name from its origin at the capital of the Achaemenid Empire, Persis, hence the name Persian. A Persian-speaking person may be referred to as Persophone, there are approximately 110 million Persian speakers worldwide, with the language holding official status in Iran, Afghanistan, and Tajikistan. For centuries, Persian has also been a cultural language in other regions of Western Asia, Central Asia. It also exerted influence on Arabic, particularly Bahrani Arabic. Persian is one of the Western Iranian languages within the Indo-European family, other Western Iranian languages are the Kurdish languages, Gilaki, Mazanderani, Talysh, and Balochi. Persian is classified as a member of the Southwestern subgroup within Western Iranian along with Lari, Kumzari, in Persian, the language is known by several names, Western Persian, Parsi or Farsi has been the name used by all native speakers until the 20th century. Since the latter decades of the 20th century, for reasons, in English. Tajiki is the variety of Persian spoken in Tajikistan and Uzbekistan by the Tajiks, according to the Oxford English Dictionary, the term Persian as a language name is first attested in English in the mid-16th century. Native Iranian Persian speakers call it Fārsi, Farsi is the Arabicized form of Pārsi, subsequent to Muslim conquest of Persia, due to a lack of the phoneme /p/ in Standard Arabic. The origin of the name Farsi and the place of origin of the language which is Fars Province is the Arabicized form of Pārs, in English, this language has historically been known as Persian, though Farsi has also gained some currency. Farsi is encountered in some literature as a name for the language. In modern English the word Farsi refers to the language while Parsi describes Zoroastrians, some Persian language scholars such as Ehsan Yarshater, editor of Encyclopædia Iranica, and University of Arizona professor Kamran Talattof, have also rejected the usage of Farsi in their articles. The international language-encoding standard ISO 639-1 uses the code fa, as its system is mostly based on the local names. The more detailed standard ISO 639-3 uses the name Persian for the dialect continuum spoken across Iran and Afghanistan and this consists of the individual languages Dari and Iranian Persian. Currently, Voice of America, BBC World Service, Deutsche Welle, Radio Free Europe/Radio Liberty also includes a Tajik service and an Afghan service. This is also the case for the American Association of Teachers of Persian, The Centre for Promotion of Persian Language and Literature, Persian is an Iranian language belonging to the Indo-Iranian branch of the Indo-European family of languages

13. Capital city – A capital city is the municipality exercising primary status in a country, state, province, or other region, usually as its seat of government. A capital is typically a city that encompasses the offices and meeting places of its respective government. In some jurisdictions, including countries, the different branches of government are located in different settlements. In some cases, a distinction is made between the capital and the seat of government, which is in another place. The word capital derives from the Latin caput, meaning head, in several English-speaking states, the terms county town, county seat, and borough seat are also used in lower subdivisions. In unitary states, subnational capitals are known as administrative centres. The capital is often, but not necessarily, the largest city of its constituent, historically, the major economic centre of a state or region often becomes the focal point of political power, and becomes a capital through conquest or federation. Examples are Ancient Babylon, Abbasid Baghdad, Ancient Athens, Rome, Constantinople, Changan, Ancient Cusco, Madrid, Paris, London, Moscow, Beijing, Tokyo, Vienna, and Berlin. Some of these cities are or were also religious centres, e. g. Constantinople, Rome, Jerusalem, Ancient Babylon, Moscow, Belgrade, Paris, and Peking. A capital city that is also the economic, cultural. The convergence of political and economic or cultural power is by no means universal, traditional capitals may be economically eclipsed by provincial rivals, e. g. Nanking by Shanghai, Quebec City by Montreal, and numerous US state capitals. The decline of a dynasty or culture could also mean the extinction of its city, as occurred at Babylon. Although many capitals are defined by constitution or legislation, many long-time capitals have no legal designation as such, for example Bern, Edinburgh, Lisbon, London, Paris, are located in or near them. In Canada, there is a capital, while the ten provinces. The states of such countries as Mexico, Brazil, and Australia all have capital cities, for example, the six state capitals of Australia are Adelaide, Brisbane, Hobart, Melbourne, Perth, and Sydney. In Australia, the capital cities is regularly used, to refer to the aforementioned state capitals plus the federal capital Canberra and Darwin. Abu Dhabi is the city of the Emirate of Abu Dhabi. In unitary states which consist of multiple constituent countries, such as the United Kingdom or the Kingdom of Denmark, the national capitals of Germany and Russia, the Stadtstaat of Berlin and the Federal City of Moscow, are also constituent states of both countries in their own right

14. Dezful – Dezful is a city in and the capital of Dezful County, Khuzestan Province, Iran. At the 2011 census, its population was 420,000 people in 105,000 families, in 2006, the city had 235,819 inhabitants. Located in an area with a history that extends back to ancient civilization, the name Dezful has been derived from the two words diz + pul, which in combination could stand for the bridge to the fortress or fortified bridge. The original name of the city was Dizpul, but after the Islamic invasion of Persia, the bridge was built during the reign of Shapur I who used Roman prisoners of war to build the bridge. The bridge protected the city from military interventions, hence its name, the old part of the city adjacent to the bridge is known as the Qaleh. In the middle of the river, close to the bridge, most of them were actually used up to the beginning of the 20th century. The last one was in use up to 1985, the Academy of Gundishapur, a teaching hospital that was the intellectual center of the Sassanid empire, was founded near Dezful. The people of Dezful, known as Dezfuli, Dezfoolians or Dezfulians, speak Dezfuli – a dialect distinct to Dezful – and Shushtar, north Khuzestan was home to some of the oldest civilizations in the world. The Chogha Mish hills have more than 8,000 years of treasures from different periods, susa Zanbil temple symbolizes the people of knowledge in this area over 3000 years ago. Apadana Palace is a symbol of the greatness of the Iranians, Shushtar waterfalls are a symbol of Iranian engineering and technology. Dezful Old Bridge is a symbol of Persian authority, cole Farah Izeh symbol of nobility of the people. These attractions put Dezful Area in the list of main study areas. Dezful sits close to the foothills of the Zagros Mountains on the main highway from Tehran to Ahvaz. The main rail line from Tehran to the Persian Gulf is 15 km from Dezful, Dezful has a hot semi-arid climate with extremely hot summers and mild winters. Dezfūl is the commercial center for northern Khuzestan and one of the main producers of agricultural products in Iran. Dezful is also a market for the products of Lorestan province. The city also contains a large textile mill and many small-. The Dez Dam,203 m high, completed in 1963, is 32 km upstream from Dezful, agriculture around Dezful was modernized in the mid-1960s by an Iranian-American joint venture company

15. Administrative divisions of Iran – The first level of country subdivisions of Iran are the provinces. Each province is subdivided into counties called shahrestan, and each shahrestan is subdivided into districts called bakhsh. There are usually a few cities and rural districts in each county, rural districts are a collection of a number of villages. One of the cities of the county is appointed as the capital of the county, assume that province P is divided into two counties, A and B. County A has 3 districts, Central, X, and Y, the Central district is the district that contains City M, the capital of the county. Each district might contain one or more cities or one or more RDs, the minimal county consists of only one city as the only district, named Central, which is most common. The county B in the table is of such type

Iran [videos]
Iran (Persian: ایران‎ Irān [ʔiːˈɾɒːn] (listen)), also known as Persia , officially the Islamic Republic of Iran
A cave painting in Doushe cave, Lorestan, from the 8th millennium BC.
A bas-relief at Persepolis, depicting the united Medes and Persians.
Sasanian rock reliefs at Taq Bostan, in the heart of the Zagros Mountains.
Khuzestan Province [videos]
Khuzestan Province (Persian: استان خوزستان‎, Ostān-e Khūzestān) is one of the 31 provinces of Iran. It is in the
Ziggurat in Chogha Zanbil, 13th century BC
Domes like this are quite common in Khuzestan province. The shape is an architectural trademark of craftsmen of the province. Daniel's shrine, located in Khuzestan, has such a shape. The shrine pictured here, belongs to Imamzadeh Hamzeh, located between Mahshahr and Hendijan.
The ziggurat of Choqa Zanbil in Khuzestan was a magnificent structure of the Elamite Empire. Khuzestan's Elamites were "precursors of the royal Persians", and were "the founders of the first Iranian empire in the geographic sense."
Masjed Jame' Dezful. In spite of devastating damage caused by Iraqi shelling in the Iran–Iraq War, Khuzestan still possesses a rich heritage of architecture from Islamic, Sassanid, and earlier times.
Dezful [videos]
Dezful (Persian: دزفول‎, pronounced [dɛzˈfuːl], in local dialect Persian: دسفیل‎, also Romanized as Dezfūl and Dezfool;
Image: Rudband 2
Provinces of Iran [videos]
Iran is subdivided into thirty one provinces (Persian: استان‎ Ostān, plural استان‌ها Ostānhā), each governed from a
Iran population broken down by province
Iran's GDP contribution broken down by province
Provinces of Iran by population in 2014
Provinces of Iran by population density in 2013
Counties of Iran [videos]
The counties of Iran, called shahrestan (Persian: شهرستان‎ šahrestân), are administrative divisions of larger provinces
Counties of Iran
Counties of Alborz
Counties of Ardabil
Counties of Bushehr
Dezful County [videos]
Dezful County (Persian: شهرستان دزفول‎) is a county in Khuzestan Province in Iran. The capital of the county is Dezful.
Image: Khuzestan
Image: Iran Khuzestan SVG
Romanization [videos]
Romanization (also spelled romanisation: see spelling differences), in linguistics, is the conversion of writing from a
Languages can be romanized in a number of ways, as shown here with Mandarin Chinese